Automatic sewage-ejector.



No. 735,430. 'PATBNTBD AUG. 4, 1903A I E. YBOALANSt AUTOMATIC SEWAGBHECTOR.

APPLICATION FILED MAY 5, 41902-.

2 SHEETS-SHEET l.

N0 MODEL.

TME Nunn No. 735,430. Y PATENTED AUG. 4, 190,3.

E. YBOMANS.

AUTOMATIC SEWAGE EJECI'UR.

APPLICATION FILED MAY 5, 1902. NO MODEL. 2 SHEETS-SHBBT 2.

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Patented Augusta, i903. i

OFFICE.

EDWARD YEoMANs, on cIIIoAGo, ILLINOIS.

AUTOMATIC S EWAG E-EJ ECTO R.

SPECIFICATION forming part of `Letters Patent No. 735,430, dated August4, 190B. i Application tiled May 5, 1902.` Serial No. 105,899- (Nomodel.)

To a/ZZ whom ztmcty concern,.-

Be it known that" I, `EDWARD YEOMANS, a

citizen of the United States, residing at Chi` cago, county of Cook andState of Illinois, have inventedcertain new and useful Improvements inVAutomatic Sewage-liliectors,4

of which the following is declared to be a full, clear, and `exactdescription, reference being had to the accompanying drawings,

`forming part of this specification.

This invention is designed to provide an improved apparatus which whilesusceptible of use in other situations is more especially intended forpumping sewage from buildings having basements below the level of theFig. 3 is a detail view, partially in elevation.

and partially in vertical section, of one of the centrifugal pumpslocated at the base of the apparatus and adjacent parts. Fig. LL is adetail view in vertical section of a part of` the main tank or reservoirat the point at which the sewage will beadmitted thereto.

The apparatus is shown inthe accompanying drawings as set withina pit orchamber in the basement of thebuilding from which the sewage is to beremoved, this arrangement of the apparatus beingV preferable for manyreasons. The-sewage-receiving tank or reservoir is formed of abase-section A and a cylindrical body A', over which extends a cover B.The sections A and A' have abutting flanges whereby the sections will besecurely bolted together, and the cover B may be held in place in anyconvenient manner. As shown, thecoverB is formed with lateral extensionsb, whereon rest the electric motors whereby the pumps are driven, andthe ends Vof the extensionsb are formed with depending lugs b', to whichareeonnected the upper ends of the brace-rods b2, the lower ends ofthese rods being bolted to lugs a3, that pro- I ject from the sides ofthe base-section A of sewage is discharged. ervoir is formed a hand-holeE, normally the reservoir. A pedestal or support VOt is shown as cast inpiece with the section A,

`and from the bottom of the section A, which is of conoidal shape, leadsthe discharge-pipes a' and a2, through which the sewage will bedischarged from the reservoir.

C designates the induction-pipe, by which sewage will be admitted to thereservoir. As shown in Fig. 4, thisipipe'C is connected to the reservoirby a threaded elbow c, and over.

the mouth of the elbow and within the 'reservoir is placed a foraminousor Wire hood or screen D, adapted t o arrest any large bodies or matterthat might otherwise tend to clog the reservoir or the pumps throughwhich the In the side of the resclosed by a plug e, this hand-holeserving to permit theremoval from the hood or screen D of any matterthat may have lodged therein.

In the preferred form of the invention the reservoir is formed, asshown, with two discharge-pipes at its bottom, and with each of thesepipes is connected a pump, the purpose of this construction being toenable the discharge from the reservoir to be effected through eitherone or both of the `dischargepipes, as circumstances may require. Thepumps, valve mechanism, &c., shown at each side ofV the reservoir arethe same.

To the discharge-pipes a' and u? are connected, respectively, thevalve-casings F and F', each of these valvefcasin gs being provided witha valve f, adapted to controlthe iiow of sewage through the pipe withwhich the, c0r

sponding centrifugal pump Hor H'.` The pe` ripheries of the pumps H andH' areconrected by suitable elbows or couplings to the discharge-pipes Kand K', respectively,through which the sewage will be carried away tothe sewer.

Suitable check-valves within checkvalve casing la will be interposed inthe dis? `charge-pipes K and toV prevent, the backiiow of the sewage.From the pumps H and H' lead upwardly the shafts h and h', whereby thepumps will be driven, the upper ends of these shafts h and h' passingthrough suit-l able holes in the cover B and being directly coupled tothe shafts of the electric motors M and M', respectively, so that, ineffect, the centrifugal pump and motor are mounted upon the same shaft.To the elbow-castings G are connected, respectively, the pipes P and P',in the sections of which pipes are interposed valve-casings P2, theports of which are controlled by valves p. From the valves p lead upwardthe valve-rods p and p2, that pass through the extensions of the cover Band are fitted with hand-wheels p3, whereby the rods may be turned toeffect the opening and closing of the valves p. The lower ends of thepipes P and P' are turned downwardly and toward the pockets p5 in thebase of the pit wherein the apparatus is set in order to enable thepipes to withdraw from the pit any water that may accumulate therein.The ends of pipes P and P' are provided, preferably, with check-valvesp8 and strainers p9, the purpose of the check-valves being to holdsufficient water within the pipes P and P' to prime the centrifugalpumps when it is desired to withdraw water through the pipes P and P'.

The motors M and M' may be of any suitable type or construction,although I prefer to employ electric motors and to mount them upon theextensions of the cover B and directly above the pumps H and H', asshown. Within the reservoir is placed a float-valve R, that consists,preferably, of a closed sheetmetal drum through which passes theguiderods fr, that depend from the cover B. To the oat R is connected arod or stem R', having a cross-head fr', to which are connected thecables S and S', that pass around pulleys s and have weights S2connected to their ends. Upon theV cables S and S' are mounted theadjustable stops s' and s2, these stops consisting, preferably, of metalballs through which the cables S and S' pass, the balls being formedwith threaded openings to receive the set-screws s3. The cables S and Spass through the arms of the switches T and T',

respectively, these arms being arranged between and in the path of.travel of the stops or balls upon the cables. Each of the switches Tand T is pivoted, as at T2, and is furnished with two contact-plates tand t' and preferably also with a weighted arm t2. The contact-plates tare adapted to connect for passage of current the electric terminals oand t', while the contact-plates t' are adapted to connect the terminalsU2 and 02, these several terminals being located in the electriccircuits W and W', that lead to the motors M and M', respectively.A

, From the foregoing description the opera-- tion of my improvedapparatus will be seen to be as follows, it being assumed that the'stops or balls upon the cables S and S' have been adjusted to relativepositions shown in the drawings. Sewage having been delivered into thereservoir, the float R will rise, thereby causing the ball or stop s' tocontact with the arm of the switch T and rock the switch to the positionshown in Fig. l of the drawings, at which time the contact-plates tandt' of the switch will close the electric terminals interposed in thecircuit W. Current will then pass to the motor M, causing the motor toeffect revolution of the centrifugal pump H, and sewage will then passfrom the discharge-pipe a' through the pump'H and up through thedischarge-pipe K to the sewer. It will be understood, of course, that atsuch time the valvesp of the valve-casings P2, that are interposed inthe pipes P and P', will be closed. If the amount of sewage delivered tothe reservoir is in such quantity as not to eX- ceed the capacit-y ofthe pump H, the pump will continue to operate until the float R descendsto such extent as to cause the stop or ball s2 on the cable S to engagethe arm of the switch Tand swing the switch to a position opposite thatshown in Fig. 1 of the drawings, thereby breaking the connection betweenthe electric terminals that are interposed in the circuit W, that leadsto the motor M. When this occurs, the motor M and the pump H will ceaseto operate. If, on the other hand, the supply of sewage delivered to thereservoir be in excess of the capacity of the pump H, then the float Rwill continue to rise within the reservoir 'until the uppermost stop orballon the cable S engages with the arm of the switch T" and moves saidswitch from the open to the closed position. When the switch T' is thusmoved, electric current will pass to the motor M', and this motor willbring into action the centrifugal pump H', thereby causing sewage to bewithdrawn from the reservoir also by thepump H', whence it will bedischarged by the .pipe K' to the sewer.

In the event of an accumulation of water in the basement of the buildingor in the pit wherein the reservoir is located the operator will turneither or both of the valve-rodsf, so as to close communication betweenone or both of the pumps H and H' and the reservoir and will then turnthe valve-rods p' or p2, or both, so as to open the valve or valves p.If now the switch T or T be in closed position, the corresponding motorM or M' will operate the corresponding centrifugal pump and will causethewater to be drawn from the pit into the'centrifugal pump or pumps atsuch time in action, whence it will pass by the discharge pipe or pipesto the sewer.

An advantage of my present invention is that a comparatively small pumpdriven by an electric motor requiring but a small amount ot' current maybe used for discharging the normal accumulation of sewage from thereservoir, while in cases of emergency the second pump will be broughtinto operation to relieve the reservoir from any excess amount ofsewagethat may-be delivered thereto.y

Another advantage of the invention'is that in event of any accumulationof water within thebasement or pit wherein'the reservoir is containedthe pump or pumps may be at once `utilized to effect the discharge ofsuch water apparatus is especially designed for the removal of sewage itmay be utilized for other purposes.

` Having thus described my invention, what I claim `as new, and desireto secure by Let-ters Patent, is-

1. An apparatus ot' the character described comprising areservoir havingan inductionpipe and having plural discharge-pipes, individual pumpsconnected to said dischargepipes, mechanism for driving said pumps andmeans controlled by the height of liquid within the reservoir arrangedto automatically and successively start and stop said pumps.

2. An apparatus of the character described comprising.r a reservoirhaving an inductionpipe and having plural discharge-pipes, individualpumps connected to said dischargepipes, mechanism for driving saidpumps, a

` float within said reservoir, independent devices for starting andstopping said pumps, and connections leading from said float arranged tosuccessively actuate said independent starting and stoppingdevices.

3. An apparatus of the character described comprising a reservoir jhaving an induction- .pipe and having plural discharge-pipes, individualpumps connected to said dischargepipes, individual'motors foractuatingsaid pumps, starting and stopping devices for said motors and meanscontrolled by the height of liquid Within the reservoir arranged tosuccessively actuate said starting and stopping devices.

4. `An apparatus of the character described comprising a reservoirhaving an inductionpipe and having plural discharge-pipes, individualpumps connected to said dischargepipes,mechanism for driving said pumps,a float within said reservoir, independent devices for starting andstopping said pumps, and connections leading from said float-foractuating said independent starting and stopping devices, saidconnections being provided with adjustable devices whereby the relativeoperation of said pumps may be accurately controlled.

5. An apparatus of the character described comprising a reservoir havingan inductionpipe and having plural discharge-pipes, individual pumpsconnected to said dischargepipes, mechanism for driving said pumps,independent starting and stopping devices for said driving mechanism, afloat controlledby the liquid Within said reservoir and connectionsleadingfrom said float and provided with stops or projections forengaging said independent starting and stopping devices.

6. An apparatus of the character described comprising a reservoir havingan inductionpipe and having plural discharge-pipes,| individual pumpsconnected to said dischargepipes, individual electric motors for drivingsaid pumps, circuit-controlling switches for said motors, a float withinsaid reservoir and independent connections leading from said float andarranged to shift said circuit-controlling switches.

7. An apparatus of the character described comprising a reservoir havingan inductionpipe and having plural discharge-pipes, individual pumpsconnected to said dischargepipes, independent electric motors fordriving said pumps, independent circuit-controlling switches for saidmotors, a float Within said reservoir and individual cables connected tosaid oat and provided with adjustable stops or projections for actuatingsaid switches.

8. An apparatus of the character described comprising a reservoir havingan inductionpipe and having a discharge-pipe at its bottom,ahorizontally-disposed centrifugal pump located at the bottom of butoutside of said reservoir and connected to said dischargepipe, avertically-disposed shaft leading upwardly from said centrifugal pump toa point adjacent the top of the reservoir and upon which shaft saidcentrifugal pump is mounted, a superposed electric motor coupled to theupper -end of said shaft and meanscontrolled by the height of liquidwithin said reservoir for automatically starting and stopping said pump.

9. An apparatus for the discharge of sewage or the like comprising aclosed metal reservoir adapted to be set within a pit, an induction-pipeopening into said reservoir, adischarge-pipe leading from the bottom ofsaid reservoir, a centrifugal pump located outside said reservoir at itsbottom, a vertically-disposed shaft connected to said pump and leadingupward to a point adjacent the top of the reservoir, an electric motormounted on said pump-shaft, a switch controlling the circuit throughsaid motor, a oat within said reservoir and connections between saidfloat and the switch whereby said switch is directly controlled by saidfloat.

l0. An apparatus of the character described comprising a reservoiradapted to. be set within a pit, ysaid reservoir having an inductionpipeand having plural discharge-pipes at its bottom,individual pumps locatedoutsidesaid reservoir and adjacent its bottom and. connectedrespectively to said discharge-pipes,

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vidual pumps, electric motors arranged above said pumps and coupleddirectly tosaid shafts and means controlled by the height of liquidwithin the reservoir for automatically starting and stopping saidmotors.

11. An apparatus for ejecting sewage from points below the sewerlevelcomprising a metal reservoir adapted to be set within a pit, saidreservoir having an ind uction-pipe and having at its bottom pluraldischarge-pipes, individual centrifugal pumps located outside saidreservoir but adjacent its bottom, each of said pumps being connected toa corresponding discharge-pipe, individual superposed motors connectedto said individual pumps, individual valves arranged in thedischarge-pipes intermediate between the bottom of the reservoir and thepumps and means for controlling the action of the individual pumps bythe height of liquid within the reservoir.

12. An apparatus for ejecting sewage from points below the sewer-levelcomprising a reservoir adapted to be set within a pit, said reservoirhaving an induction-pipe and having a discharge-pipe at its bottom, acentrifugal pump located outside of said reservoir but adjacentitsbottom and connected to the discharge-pipe of the reservoir, a valvefor concomprising a reservoir adapted to be set within a pit, saidreservoir having an inductionpipe and having at its bottom pluraldischarge-pipes, individual pumps located outside of said reservoir atits bottom, said pumps being connected to said dischargepipes, shaftsleading upwardly from said pumps to the top of the reservoir, andindividual motors connected to said shafts.

14. An apparatus for ejecting sewage from points below the sewer-levelcomprising a reservoir adapted to be set within a pit, said reservoirhaving an induction-pipe and having at its bottom individualdischarge-pipes, individnal pumps located outside of said reservoir atits bottom, said pumps being connected to said discharge-pipes,individual superposed motors whereby said pumps are driven, asupplemental discharge-pipe leading from one of said pumps to a pointoutside of said reservoir, individual valves for controlling the ow ofliquid from the reservoir to the pumps, a valve for controlling the flowof liquid through said supplemental discharge pipe to the pump andsuperposed mechanism for driving said pumps.

15. An apparatus of the character described comprising a reservoirformed of a base-section having a discharge-pipe and a pedestal casttherewith and having a body-section secured thereon, a cover extendingover said reservoir and having a lateral extension, a motor mounted uponsaid cover extension, a rotary pump located at the base of saidreservoir and connected with its discharge-pipe, and a shaftleadingupward from said'pump through said cover extension to said motor.

.16. An apparatus ofthe character described comprising a reservoirformed of a base-section having a pedestal and discharge-pipes cast inpiece therewith, a body-section secured to said base-section, a coverextending over said body-section and provided with lateral extensions,and brace-rods connecting said cover extensions to said reservoir.

17. An apparatus of the character described comprising a reservoir, auinduction pipe openinginto said reservoir, a foraminous hood within saidreservoir and extending over the opening of said induction-pipe, ahand-hole in the wall of said reservoir opening into said hood and aplug for closing said hand-hole. EDWARD YEOMANS. Witnesses:

GEO. P. FISHER, Jr., v ALBERTA ADAMICK.

